If there was a Skyrim movie I'd watch it 'till the end (of my life-) time. I could die happily after that.
I mean, they wouldn't have to feature the events of Skyrim and desperately try to put every questline of importance into a movie that would barely last 2 hours, but a movie about the Great War, would that be too much to ask? Imagine the epicness, it would be like Narnia only without a lion king, but with more epicness (and, admittedly, cruelty).
The best dreamcasts have been posted on tumblr (in my opinion), so I'll quote some of them.
Taylor Kitsch as Ralof
Sean Bean as Ulfric Stormcloak
Luke Goss as Ancano
Hugh Jackman as Hadvar
Liam Neeson as Jarl Balgruuf
My personal favourite after watching "Snowwhite and the Huntsmann" -
Charlize Theron as Elenwen
Robin Atkin Downes as Brynjolf (he's also his voice actor
)
Chris Hemsworth as the Dovahkiin
Jaimie Alexander as Elisif the Fair
Christian Bale as Ondolemar
Adam Sandler as Razelan (I like his humor and voicing, so I don't mind if his skin color isn't dark enough for the original ^^)
Picked actors might switch in case any of them put punds of botox into their face. Good thing they're easy to replace.